Oil-burner.



V. MATTESON.

OIL BURNER.

APPLIUATION FILED 11116.21, 1911.

Patented May 21, 1912..

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`V'ERNIE MATTESON, 0F SEATTLE, WASHINGTON, ASSIGNOR OF ONE-HALF TO REINDER B. TOLSMA, OF SEATTLE, WASHINGTON.

OIL-BURNER.

To all whom it 'may concern:

Be it known that I, VERNIE MAT'rEsoN, a citizen of the United States, residing at Seattle, in the county of King and State 0f Washingtom'have invented certain new and useful Improvements in Oil-Burners, of which the following is a specification.

This invention relates to fuel Oil burners for steam boiler furnaces and the like; and has for 'its object the provision of a burner and atomizer wherein the fuel oil may be intimately mingled with the spraying iuid and so finely comminuted thereby that practically complete combustion results and an absence of all deposit of carbon.

With this end in view, the invention consists in the novel construction, ada tation and combination of devices constitu ing a fuel oil burner and its connective and communicating parts, as Will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a view partly in side elevation and partly in longitudinal section of devices embodying my invention. Fig. 2 is a transverse sectional view taken upon line 2 2 of Fig. 1 in the direction indicated by the arrows.

Referring to said drawings, the reference numeral 1 designates a supply pipe for steam or other spraying fluid under pressure. A T-fitting 2 affords communication with branches 3 and 4 which conduct said Huid within the burner casing. One of said branches, 4, connects radially with the chamber 6 of t-he casing base 7 and the other, 3, communicates with an auxiliary chamber 30 of a union 31 and having an axially arranged tubular extension 8 protruding into the casing 7 through said chamber 6 and terminates in a closed forward end 5. 9 is an oil supply pipe connecting with said union 31 and oil under hydrostatic or other suitable pressure is conducted into said union and mingling with the steam flowing therethrough is conducted through said extension 8 and emitted therewith through a plurality of radially directed holes 10 in proximity of said closed end. It will be noted that the extension 8 only enters the tubular member 11 a comparatively short distance, while the steam branch pipe 4 enters the casing 6 at a point substantially midway of the length of the said extension 8. 'The steam entering the chamber 6 through branch 4 and issuing therefrom into the forward tubular portion Specification of Letters Patent.

Application filed August 21, 1911.

Patented May 21, 1912. Serial No. 645,107.

11 impinges upon the numerous radially directed jets of mingled steam and oil emitted from said holes and further separates the latter into finer particles. The force of steam from the pipe 4 directs the current through the relatively narrow annular passage 12 about the end 5 longitudinally4 of the casing tubeV 11 where itis conducted through a bore provided with an interiorly directed spiral rib 21 formed upon the tubular wall of the casing and affording an un,

obstructed central channel. The passage of the fuel through said bore causes it to partake of a whirling motion through contact with said peripheral ribs which further comminutes the o1l particles and in connection with heat radiating within the casing walls forms an intimately mingled inflammable mixture. The tube 11 may desirably terminate in a reducer 13 to which may be connected as by a nipple 14 a burner tip 15.

Said tip may be of any suitable type but may consist, as shown, of a chambered body provided with a pair of spaced parallel apertures 16. Intermediate vsaid apertures the tip is provided with an interiorly directed wedge 17, triangular in cross section whose y diver-ging exposed sideslare adapted to eiliciently conduct the mixture to the outlets and to battle any whirling motion in the mixture remaining therein after passing through the contracted duct 18 of said coupling. The numeral 19 denotes a valve` included in said steam supply pipe 1 to throttle or regulate the amount of spraying fluid supplied to the burner; and 20 a valve in the oil supply connections for an analogous purpose.

The operation of the invention is believed to be clear from the foregoing description. Its advantages reside in convenience of reguylation andits adaptability to supply awidely varying amount'of fuel to the boiler furnace with equally economical results. That is to say, that .where slow fires are desired an equally good flame can be had as where the boilersare being crowded and the maximum capacity of the burner is being tested. It is thus economical of fuel and steam and requires a minimum of care in its operation.

Having described my invention, what I claim as new and desire to secure by Letters- Patent, is-

1. In an oil burner, a casing having a chamber therein, a tubular'member secured to said casing and having a bore therethrough communicating with said chamber, a burner tip provided at the forward end of said tubular member, a uniwn secured to said casing and having an auxiliary chamber therein, a tubular extension communicating with said auxiliary chamber and sen cured .to said union and extending centrally through said casing and Within thel outer end of said tubular member and provided with radial openings in the end thereof within said member, a steam pipe, branch pipes leading from the latter to said casing and union, and an oil supply pipe leading to said union.

2. In an oil burner, a casing, a tubular member secured thereto, a burner tip provided at the forward end of said tubular member, a steam pipe, two branch steam pipes leading'from the latter, an axially arf ranged tubular extension provided through the entirelength of the casing'and terminating at one end a comparatively short distance within the tubular member, an oil supply pipe, the latter and, one of said steam branch pipes discharging into said tubular extension and the other of said steam branch pipes discharging into said casing exteriorl of and substantially midway of the lengt of the said extension. p

VERNIE MATTESON.

Witnesses:

H. BARNES, E. PETERSON. 

